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ISSN : 1738-1894(Print)
ISSN : 2288-5471(Online)
ISSN : 2288-5471(Online)
스멕타이트 점토의 팽창도, 층전하, 양이온 교환능에 대한 열수반응의 영향
Effect of a Hydrothermal Reaction on the Expandibility, Layer Charge, and CEC of Smectite Clay
Abstract
In a HLW repository, the buffer is exposed to an elevated temperature due to a radioactive decay and geochemical conditions for a long time and such a hydrothermal condition may cause a significant loss of its barrier function. This study carried out hydrothermal tests with a domestic smectite clay to investigate the changes in the expandibility, layer charge, and cation exchange capacity of the smectite. When the temperature and potassium concentration in solution was increased for the hydrothermal treatments, the expandibility decreased, the layer charge negatively increased, and the CEC also decreased.
고준위폐기물처분장, 완충재, 스멕타이트 점토, 열수반응, 팽창도, 층전하, 양이온교환능, HLW repository, buffer, smectite clay, hydrothermal reaction, expandibility, layer charge, cation exchange capacity
Reference
JNFCWT
Online Submission
Korean Radioactive
Waste Society (KRS)
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